Returns a tree that will be the result of executing the indicated expression in the context of the indicated tree.
This also watches the tree for change events. Currently, FileTree is the only type of tree that supports change events. If a change event is raised, the expression is reevaluated to obtain a new result tree. Subsequent references to the watch() result will access the new tree.
This can be used to serve a virtual folder, reevaluating its definition whenever the containing real folder changes.
$ ori serve watch src, =debug src/site.ori
Calling serve this way will ensure that changes you make to Origami files and other data will be reflected when you refresh your browser.
Note: watch will not reload JavaScript files. If you edit any JavaScript files used in the construction of your site, you will need to restart the server to see those changes in the browser.